Perhaps the label which came with the spool of rope is what they're looking
for. It should have the working and/or breaking strength listed. If memory
serves, in the absence of weak links at each end of the rope, the rope's
breaking strength must fall between 80% and 200% of the gross weight of the
glider being towed. I can't think of any other certification requirement.

"bobmckellar" wrote in message
...
All I have is a multiple hand account, which is why I was looking for more
direct info. It doesn't fit my experience either, but I'm a rookie.